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Most modern operating systems it will detect the printer and install drivers without the disk. If however it doesn't you can download all available drivers here: http://support.lexmark.com/index?productCode=LEXMARK_X1270&page=product&focusedTab=DOWNLOADS&locale=EN&userlocale=EN_UK#1

Click on Add a Printer wizard from the control panel - printer and faxes folder

Select the Options as Local Printer and Uncheck the Options which says automatically detect my device- Click on next
Use the First Option -- use the following port and select the USB VIRTUAL OO1 Port or something like that

Click on next
You get the Manufacturer page
Select HP and on the Printers list select HP DESKJET 990c Printer and then click on next and complete the installation

u can print with this generic drivers which are there in your system without even installing the Printer driver

If you connect and turn on the printer then turn on your computer it should start the found new hardware wizard. don't do anything until or IF it asks you to install the disc, the make sure you direct it to find the files under the correct drive letter which is usually "D" or "E" .Good luck, .Dana

Whenever we are buying any new printer, the printer driver cd will be given by the vendor to install the printer in the Laptop or Desltop.

In this incident, the printer software might have been removed fully without knowing this issue.

The best things is either approach the Local Printer dealer to get the Printer Driver cd and install the same in the machine.

Or it can be donwloaded from the Net, but it will consume more time.

Best solution is approach the local printer engineer who will be having the Driver CD with him to install the same in the machine.

One more request is make the printer, desktop or laptop should be in some annual maintenance contact with local authorized vendor. In this case, if it is under Annual Maintenance Contract, the Vendor should have installed the printer within a short span of time.

You plugged the printer in and it didn't work? Download the driver for your appropriate version of windows here:

http://www.driversbay.com/drivers/printers/lexmark/z640/

That should work... After you download it, follow any additional directions on how to install it. Make sure the printer is plugged in, and restart your computer, then try to print something simple, like a word document.